linux-kernel - [PATCH v2 07/11] staging: pi433: Split rf69_set_sync

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Date:   Tue,  5 Dec 2017 23:08:45 +0100
From:   Simon Sandström <simon@...anor.nu>
To:     gregkh@...uxfoundation.org
Cc:     linux@...f-Entwicklungen.de, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 07/11] staging: pi433: Split rf69_set_sync_enabled into two functions

Splits rf69_set_sync_enabled(dev, enabled) into
rf69_enable_sync(dev) and rf69_disable_sync(dev).

Signed-off-by: Simon Sandström <simon@...anor.nu>
---
 drivers/staging/pi433/pi433_if.c | 21 +++++++++++++++++++--
 drivers/staging/pi433/rf69.c     | 18 ++++++------------
 drivers/staging/pi433/rf69.h     |  4 ++--
 3 files changed, 27 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 614eec7dd904..fb500d062df8 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -197,13 +197,20 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg)
 
 	/* packet config */
 	/* enable */
-	SET_CHECKED(rf69_set_sync_enable(dev->spi, rx_cfg->enable_sync));
 	if (rx_cfg->enable_sync == OPTION_ON)
 	{
+		ret = rf69_enable_sync(dev->spi);
+		if (ret < 0)
+			return ret;
+
 		SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, afterSyncInterrupt));
 	}
 	else
 	{
+		ret = rf69_disable_sync(dev->spi);
+		if (ret < 0)
+			return ret;
+
 		SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, always));
 	}
 	if (rx_cfg->enable_length_byte == OPTION_ON) {
@@ -281,7 +288,17 @@ rf69_set_tx_cfg(struct pi433_device *dev, struct pi433_tx_cfg *tx_cfg)
 	{
 		SET_CHECKED(rf69_set_preamble_length(dev->spi, 0));
 	}
-	SET_CHECKED(rf69_set_sync_enable  (dev->spi, tx_cfg->enable_sync));
+
+	if (tx_cfg->enable_sync == OPTION_ON) {
+		ret = rf69_enable_sync(dev->spi);
+		if (ret < 0)
+			return ret;
+	} else {
+		ret = rf69_disable_sync(dev->spi);
+		if (ret < 0)
+			return ret;
+	}
+
 	if (tx_cfg->enable_length_byte == OPTION_ON) {
 		ret = rf69_set_packet_format(dev->spi, packetLengthVar);
 		if (ret < 0)
diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c
index 612d59f61f88..e5b29bed35ef 100644
--- a/drivers/staging/pi433/rf69.c
+++ b/drivers/staging/pi433/rf69.c
@@ -724,20 +724,14 @@ int rf69_set_preamble_length(struct spi_device *spi, u16 preambleLength)
 	return WRITE_REG(REG_PREAMBLE_LSB, lsb);
 }
 
-int rf69_set_sync_enable(struct spi_device *spi,
-			 enum option_on_off option_on_off)
+int rf69_enable_sync(struct spi_device *spi)
 {
-	#ifdef DEBUG
-		dev_dbg(&spi->dev, "set: sync enable");
-	#endif
+	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) |  MASK_SYNC_CONFIG_SYNC_ON));
+}
 
-	switch (option_on_off) {
-	case OPTION_ON:  return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) |  MASK_SYNC_CONFIG_SYNC_ON));
-	case OPTION_OFF: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_ON));
-	default:
-		dev_dbg(&spi->dev, "set: illegal input param");
-		return -EINVAL;
-	}
+int rf69_disable_sync(struct spi_device *spi)
+{
+	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_ON));
 }
 
 int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifoFillCondition fifoFillCondition)
diff --git a/drivers/staging/pi433/rf69.h b/drivers/staging/pi433/rf69.h
index 9428dee97de7..177223451c87 100644
--- a/drivers/staging/pi433/rf69.h
+++ b/drivers/staging/pi433/rf69.h
@@ -59,8 +59,8 @@ int rf69_set_rssi_threshold(struct spi_device *spi, u8 threshold);
 int rf69_set_rx_start_timeout(struct spi_device *spi, u8 timeout);
 int rf69_set_rssi_timeout(struct spi_device *spi, u8 timeout);
 int rf69_set_preamble_length(struct spi_device *spi, u16 preambleLength);
-int rf69_set_sync_enable(struct spi_device *spi,
-			 enum option_on_off option_on_off);
+int rf69_enable_sync(struct spi_device *spi);
+int rf69_disable_sync(struct spi_device *spi);
 int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifoFillCondition fifoFillCondition);
 int rf69_set_sync_size(struct spi_device *spi, u8 sync_size);
 int rf69_set_sync_tolerance(struct spi_device *spi, u8 syncTolerance);
-- 
2.11.0